BMW 8 Series Gran Coupé, G16 / F93 (USA)

Additional Notes

• The BMW M8 Gran Coupé xDrive carries a high temperature cooling circuit capacity of 11.5 liters, which is notably larger than the 8.75-10 liter range shared by the M850i xDrive Gran Coupé and the Alpina B8 xDrive Gran Coupé in the same circuit.
• The split between a high temperature cooling circuit and a low temperature cooling circuit reflects a dual-loop thermal management architecture, where the high temperature loop handles the primary engine cooling load and the low temperature loop manages heat exchangers such as charge air coolers or power electronics.
• The M8 Gran Coupé xDrive low temperature cooling circuit holds 4.5 liters, compared to 3.25 liters in both the M850i xDrive Gran Coupé and the Alpina B8 xDrive Gran Coupé, consistent with the greater thermal demands of the S63 V8 engine powering the M8.
• The high temperature cooling circuit capacity for the M850i xDrive Gran Coupé and the Alpina B8 xDrive Gran Coupé is expressed as a range of 8.75-10 liters rather than a fixed value, indicating that the actual fill volume can vary depending on system configuration or residual fluid retention during service.
• All three configurations list use condition as normal, meaning the capacities stated apply to standard operating conditions without a separate severe-use or first-fill distinction in the specifications.
• The Alpina B8 xDrive Gran Coupé shares the same 8.75-10 liter high temperature and 3.25 liter low temperature cooling circuit capacities as the M850i xDrive Gran Coupé, reflecting a closely related engine platform between the two variants despite differing tuning and branding.